Answer: one solution (d)
Step-by-step explanation:
The equation equals -17, which is one solution, I just did the unit last month.
please help ASAP! thank you
Answer:
c
Step-by-step explanation:
a members only speaker series allows people to join for $7 and then pays $1 for every event attended. what is the maximum number of events someone can attend for a total cost of $50
Answer:
7 event
Step-by-step explanation: 50/7=7
Which expression is not equivalent to -2(4 - 3x)+(5x-2)? A)11x-10.
B)-8+11x-2
C) -8-11x-2.
D) -8+6x+5x-2
Answer:
C) -8-11x-2.
Step-by-step explanation:
First solve the expression,
-2(4 - 3x)+(5x-2) = 11x-10
A) 11x-10 = 11x-10
B) -8+11x -2 = 11x-10
C) -8-11x-2 does not equal 11x-10. Instead -8-11x-2 = -11x-10
D) -8+6x+5x-2 = 11x-10
Hope this helped! :)
how does using scientific notation help when computing with very small or very large numbers
Answer:
It abbreviates or shortens the numbers that you are working with making them easier to do calculations with.
Step-by-step explanation:
Example : 10,000 in scientific notation = 1.0x10^4
1,000,000 = 1.0x10^6
A tutor works with a group of students. She charges $40 for the tutoring session plus $30 for each student in the group.
What's the equation?
145% of what number is 21
4 +y = 12. Substitute 8 for x.
Answer:
where should I substitute 8 for x? if its like this 4(8)+y=12 than its y=-20
Step-by-step explanation:
2x - 8 = 12 - 4x
solve for variable
Answer:
x = [tex]\frac{10}{3}[/tex] or [tex]3\frac{1}{10}[/tex]
Step-by-step explanation:
2x - 8 = 12 - 4x
1) Add 8 on boths sides:
2x - 8 + 8 = 12 - 4x + 8
2x = 20 - 4x
2) Add 4x to both sides:
2x + 4x = 20 - 4x + 4x
6x = 20
3) Divide 6 on both sides
[tex]\frac{6x}{6} = \frac{20}{6}[/tex]
x = [tex]\frac{10}{3}[/tex] or [tex]3\frac{1}{10}[/tex]
Solve for n. 5^{n} = 5^[11] x 5^ [3]
Answer:
n = 14
Step-by-step explanation:
[tex]5^n = 5^{11} * 5^3[/tex]
simplify the right side
[tex]5^n = 5^{14}[/tex]
Then you can easily see that
[tex]n = 14[/tex]
Answer:
n = 14
Step-by-step explanation:
[tex]a^{x}*a^{y}=a^{x+y}\\\\5^{n} = 5^{11}*5^{3}\\\\5^{n} = 5^{11+3}\\\\5^{n}=5^{14}\\\\[/tex]
n = 14
The mean of (x + 5), (x + 3), (2x + 1) and (x - 6) is 12. What is the
value of x?
Answer:
x=9
Step-by-step explanation:
answers too short so cigdtusrysyksrytf7hiuf6s4td6figiio
The first two steps in the derivation of the quadratic formula by completing the square are shown below.
Which answer choice shows the correct next step?
Step 1: ax^2+bx+c =0
Step 2: ax^2+bx=-c
Answer: C
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
can anyone answer this????
Answer:
4x^2[tex]\sqrt{7x^{2} }[/tex]
Ms. Browne cut a 6 meter rope into 3 equal-size pieces to make jump ropes, Mr. Ware on 5-meter rope into 3 equal size pieces to make jump ropes, which class has longer jump rope
Say you want to know if boys are more likely than girls to "wait for their missionary". You take a random sample of 57 males and 63 females, all of whom are in a relationship with someone who just left on a mission. You follow-up with them after the mission of their significant other returned home to determine if their relationship continue after the mission. What type of analysis is best suited for this study
Answer: 2 independent sample test of proportions
Step-by-step explanation:
The teo independent sample test of proportion is also referred to as the two proportion z-test and it simply allows the researcher to compare the two proportions in order to ascertain if they're the same or not.
In this case, the null hypothesis will be that that the proportions given in the research are the same while the alternate hypothesis will be that there is a difference between the proportions given.
The kind of analysis that would be most adequate for the given study:
Test of 2 Independent Proportions.
Independent Proportions
The test of two independent proportions is characterized as the method of study in which samples are opted randomly and allowed to remain independent.
In such a study, a minimum of 5 failures and successes are considered to reach a conclusion.
In the given situation, the samples of males and females are random and permitted to stay free("continue after the mission") and evaluated after a time to take the deduction.
Learn more about "Sample Method" here:
brainly.com/question/1413932
Find two numbers that add up to 158. The greater number is 40 more than the lesser number
180º represent chocolate, 90º represent vanilla and 90º represents other flavor draw the pie chart.
will be marked as brainliest
Answer:
Look at attached.
Step-by-step explanation:
A full circle is 360 degrees. So 180 represents half of the circle and 90 represents a quarter.
Answer:
chocolate 180°
Step-by-step explanation:
chocolate=180°
vanilla=90°
othere flavor=90°
the total degrees of the pie chart 360 °
Someone please help with these two similar figures questions!!! I need this asap!! I will mark brainliest if right please!
Answer:
K and R S and D
Step-by-step explanation: i hope this helps
What is the first step in solving this equation for x?
A) 2x + 14 + 3x = 12
B) 2x + 14 = 9
C) 2x + 7 + 3x = 12
D) 5x = -2
find the value of given expression
=》
[tex] \frac{ \sqrt{64} }{16} [/tex]
Answer:
the answer to your question is
[tex]0.5 \: or \: \frac{1}{2} [/tex]
What is an equation of the line that passes through the points (5, 5) and (5, -8)
Answer:
Write the problem as a mathematical expression. (5,5), (5,−8)
Use y=mx+b to calculate the equation of the line, where m represents the slope and b represents the y-intercept. To calculate the equation of the line, use the y=mx+b format.
Slope is equal to the change in y over the change in x , or rise over run.
m=(change in y)/(change in x)
The change in x is equal to the difference in x-coordinates (also called run), and the change in y
is equal to the difference in y-coordinates (also called rise).
m=(y2−y1) / (x2−x1)
Substitute in the values of x and y
into the equation to find the slope.
m=(−8−(5)) / (5−(5))
Finding the slope m.
Undefined
x=5
Step-by-step explanation:
Answer:
m = undefined
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Coordinates (x, y)Slope Formula: [tex]\displaystyle m=\frac{y_2-y_1}{x_2-x_1}[/tex]Step-by-step explanation:
Step 1: Define
Point (5, 5)
Point (5, -8)
Step 2: Identify
(5, 5) → x₁ = 5, y₁ = 5
(5, -8) → x₂ = 5, y₂ = -8
Step 3: Find slope m
Simply plug in the 2 coordinates into the slope formula to find slope m
Substitute in points [Slope Formula]: [tex]\displaystyle m=\frac{-8-5}{5-5}[/tex][Slope] Subtract: [tex]\displaystyle m=\frac{-13}{0}[/tex]Here we see that we have a number divided by 0. Since we know that we cannot divide any number by 0, our slope will be undefined. This will be a vertical line on a Cartesian plane of x = 5.
25a² - 16b² when a = --2 and b = 3
25a² - 16b²
25*-2² - 16*3²
25*4 - 16*9
100 - 144
= -44
While growing bacteria in a laboratory Petri dish, a scientist notices the number of bacteria over time. The observations are shown in the table.
Number of bacteria
Number of minutes
from initial state
0 4
5 128
10 4096
15 131072
What function can be used to describe the number (n) of bacteria after 2 minutes?
Answer:
The function that can be used to describe the number (n) of bacteria after 2 minutes is;
[tex]P = 4 \cdot e^{\left(\dfrac{ln(32)}{5} \times 2\right)} \approx 4 \cdot e^{\left(0.693\times 2\right)}[/tex]
Step-by-step explanation:
The data in the table are presented as follows;
Number of bacteria; 4, 128, 4,096, 131,072
Number of minutes from initial state; 0, 5, 10, 15
The general equation for population growth is presented as follows;
[tex]P = P_0 \cdot e^{r\cdot t}[/tex]
Where;
P = The population after 't' minutes
P₀ = The initial population
r = The population growth rate
t = The time taken for the growth in population numbers
At t = minutes. we have;
[tex]4 = P_0 \cdot e^{r\times0} = P_0[/tex]
∴ P₀ = 4
At t = 5, we have;
[tex]128 = 4 \cdot e^{r\times 5}[/tex]
[tex]\therefore e^{r\times 5} = \dfrac{128}{4} = 32[/tex]
[tex]ln\left(e^{r\times 5}\right) = ln(32)[/tex]
∴ r × 5 = ㏑(32)
r = ln(32)/5 ≈ 0.693
The number (n) of bacteria after 2 minutes is therefore;
[tex]P = 4 \cdot e^{\left(\dfrac{ln(32)}{5} \times 2\right)} \approx 4 \cdot e^{\left(0.693\times 2\right)}[/tex]
...................................................
Answer:
Brand A
Hope this helped!
Step-by-step explanation:
HELPPP MEEE PLEASEEE!!!!
Answer:
1) 3 , 2)Add 8 floats 3) -2 4) Remove 8 anchors.
Step-by-step explanation:
Find the common difference of the arithmetic sequence
-17, -15, -13, ...
Answer:
term 1 - term 2 = sequence
so
-17-(-15) = -2
and if you minus the rest by -2 it will give you the next term
-15-(-2) = -13
-13-(-2) = -11
Answer:
2
Step-by-step explanation:
:0
Cassandra drew a rectangle that was 1/4 foot long and 7/12 foot wide. What is the area of the rectangle Cassandra drew?
Answer:
7.5 x .25= 1.875 square feet
I need help !!!!!!!!!!!!!!!!!!!!
Answer:
Step-by-step explanation:
a) looks like about 180 ( by the graph)
b) February was the only month where the average was about 70
c) yes, b/c this graph has months along the bottom, as the independent variable and the rain fall in each as the dependent so the amount of rain is a function of each month
A group of 10 people is choose a chairperson and vice-chairperson. They put all 10 peoples names into a bar. The first name drawn becomes chair. The second name drawn becomes vice-chair. How many possible combinations of chair and Vice-chair are there ?
Answer:
90
Step-by-step explanation:
A group of 10 people is choose a chairperson and vice-chairperson. They put all 10 peoples names into a bar. The first name drawn becomes chair. The second name drawn becomes vice-chair. How many possible combinations of chair and Vice-chair are there ?
This is calculated using the Permutation formula
nPr = n!/(n - r)!
Where:
n = 10 people
r = 2 = 2 positions to be filled , Chairman and Vice chairman
Hence:
10P2 = 10!/(10 - 2)!
= 90 ways
Graph the function and select the y-intercept. y = 2 • 3x
a. 1
b. 2
c. 3
d. 4
Answer:
i think is number 2
help me out thank you have a wonderful day!
Answer:
x= 1/4
Step-by-step explanation:
i hope this helps :)